KR101285545B1 - Wind power systems of dual power transmission - Google Patents

Abstract

PURPOSE: A dual power transmission type wind power generation system is provided to generate power by installing an auxiliary motor even through wind power is not generated. CONSTITUTION: A dual power transmission type wind power generation system comprises a first rotary shaft (110), a wind power part (100), a power transmission part (200), generators (400a,400b,400c), and an auxiliary motor (300). The wind power part comprises multiple blades formed on the rotary shaft to provide wind power. The power transmission part comprises a second rotary shaft (210) connected to the first rotary shaft; and a centrifugal disk (211). The generators comprise a movable shaft rotating with the second rotary shaft and generate electromotive force by the rotation of the movable shaft. The auxiliary motor is connected to the second rotary shaft and rotates the second rotary shaft when the first rotary shaft does not rotate.

Description

Wind power systems of dual power transmission

The present invention relates to a wind power generation system of a dual power transmission system, and more specifically, it can generate power even when no wind is generated, and by driving a plurality of generators by increasing the torque by forming a centrifugal disk on the second rotating shaft. It is possible to increase the power generation efficiency, and by configuring the first rotating shaft having a rotating portion and the supporting portion having a different polarity, and relates to a wind power generation system of a dual power transmission system that can minimize friction and noise during rotation.

Existing fossil energy resources are not only gradually exhausted, but also pollute the global environment. For a long time, humankind has been trying to develop a clean alternative energy utilization device that is not exhausted and does not pollute the environment. Such clean alternative energy includes solar energy, wind energy, current energy, tidal energy, geo-thermal energy and bio-thermal energy. ).

As a means for generating electricity by using the wind energy is used as a wind power generator, the wind power generator is a horizontal axis wind turbine is installed horizontally with respect to the ground axis of rotation along the direction of the rotation axis, the rotation axis is installed perpendicular to the ground Divided into vertical axis wind turbines.

The horizontal axis wind power generator has the advantage of realizing high power generation efficiency in the most general form, but in the region where the wind direction is frequently changed, it is difficult to smoothly generate electricity, and the maintenance is difficult because the main parts including the rotor are installed at high places. It has the disadvantage of being structurally vulnerable to strong winds such as typhoons.

On the other hand, the vertical axis wind power generator is capable of generating electricity regardless of the direction of the wind, and a lot of research is being progressed due to the advantages of easy maintenance, because the main parts such as gearbox and generator are installed on the ground. Most of these vertical axis wind turbines are provided with a plurality of blades are installed around a vertically arranged rotary shaft or cylindrical structure, each blade is configured to be folded or rotated according to the relative position or wind strength in the direction of the wind blowing It is designed to make the most of wind power in limited conditions.

However, the vertical axis wind power generator has a problem in that the power generation efficiency is lower than that of the horizontal axis wind power generator.

In order to solve this problem, Korean Patent No. 10-0940193 discloses a vertical axis wind power generation system capable of performing high efficiency power generation using a plurality of vertical axis wind power generators.

However, there is a problem in that the wind power generation system of the registered patent cannot generate power when the wind is not blown or weak, and the vertical axis wind power generator has a problem that the friction increases in the axial direction.

Accordingly, the present invention has been made to solve the above problems, an object of the present invention is to provide a dual power transmission system wind power generation system that can be generated even when the wind power does not occur by mounting the auxiliary motor. will be.

In addition, an object of the present invention is to provide a wind power generation system of a dual power transmission system that can increase the torque by driving a plurality of generators by increasing the torque by forming a centrifugal disk on the second rotary shaft.

In addition, an object of the present invention is to facilitate the deceleration of the second rotary shaft through various combinations of V-belts and pulleys, the dual power transmission system that the first rotary shaft and the auxiliary motor can alternately develop without being influenced by each other. To provide a wind power generation system.

In addition, an object of the present invention is to provide a wind power generation system of a dual power transmission system by minimizing the friction and noise during rotation by configuring the first rotating shaft having a rotating portion and a supporting portion having different polarities.

In order to achieve the above object, the wind power generation system of the dual power transmission system according to the present invention includes a first rotating shaft; Wind power unit for providing wind power including a plurality of blades formed on the first rotary shaft; A power transmission unit including a second rotation shaft connected to the first rotation shaft and a centrifugal disk formed on the second rotation shaft to generate torque due to centrifugal force during rotation; A movable shaft connected to the second rotary shaft to rotate and at least two generators generating electromotive force by the rotation of the movable shaft; And an auxiliary motor connected to the second rotary shaft and rotating the second rotary shaft when the first rotary shaft does not rotate. The power generator includes a wind turbine and an auxiliary motor.

In addition, the second rotary shaft of the wind power generation system of the dual power transmission system according to the present invention is a first belt connected to the first rotary shaft, a second belt connected to the auxiliary motor, and a third connecting to the movable shaft Characterized in that the belt is installed.

In addition, each of the first belt and the second belt of the dual power transmission system of the wind power generation system according to the present invention is a V belt formed with a plurality of grooves on the inner surface, the first rotating shaft is coupled to the first belt A pulley is formed and a second pulley coupled to the second belt is formed on the auxiliary motor, or a first pulley coupled to the first belt and a second pulley coupled to the auxiliary motor are formed on the second rotation shaft. The first pulley and the second pulley are configured to rotate in opposite directions to each other, and the first rotation shaft and the auxiliary motor are characterized in that the other one is configured not to rotate when the rotation.

In addition, each of the first and second pulleys of the wind power generation system of the dual power transmission method according to the present invention and the inner body is formed with an elastic engaging piece to prevent rotation in the reverse direction; An outer body coupled to an outer side of the inner body, an inner circumferential surface having a plurality of locking grooves on which the elastic locking piece is caught, and an outer circumferential surface having a coupling tooth engaged with the groove of the V belt; It characterized in that it comprises a; cover for coupling the inner body and the outer body.

In addition, the first pulley and the second pulley of the dual power transmission system according to the present invention is configured to rotate in the same direction, the first rotary shaft and the auxiliary motor any one or the same time rotates to drive the generator Characterized in that.

In addition, the second rotary shaft of the wind power generation system of the dual power transmission system according to the present invention is characterized in that the deceleration is made smaller than the rotation radius of the first rotary shaft or the auxiliary motor.

In addition, the first rotary shaft or the second rotary shaft of the wind power generation system of the dual power transmission system according to the present invention is a receiving portion, the upper portion of the supporting portion and the rotating portion formed by rotating the blade, the receiving portion and the rotating portion accommodate Is made of a rotating shaft cover, the rotating part has a polarity opposite to the supporting portion is characterized in that the magnetic levitation to minimize the friction during rotation.

In addition, the wind power generation system of the dual power transmission system according to the present invention further includes a control device for stopping the driving of the auxiliary motor when the first rotary shaft rotates, and stops the driving of the first rotary shaft when the auxiliary motor rotates, The control device includes a sensor for detecting whether the first rotary shaft or the auxiliary motor is rotated; A transmitter for transmitting a signal sensed by the sensor; A clutch for receiving a signal from the transmitter and controlling the driving of the first rotary shaft or the auxiliary motor, and the rotational force of the first rotary shaft is not transmitted to the second rotary shaft when the second rotary shaft is rotated by the rotation of the auxiliary motor. And a control unit including a.

The wind power generation system of the dual power transmission system according to the present invention having the above configuration has the effect of generating power even when no wind is generated by mounting the auxiliary motor.

In addition, the wind power generation system of the dual power transmission method according to the present invention has the effect of increasing the torque by forming a centrifugal disk on the second rotating shaft to drive a plurality of generators to increase the power generation efficiency.

In addition, the wind power generation system of the dual power transmission system according to the present invention can easily decelerate the second rotating shaft through various combinations of the V-belt and the pulley, and the first rotating shaft and the auxiliary motor are alternately generated without being influenced by each other. There is an effect that can be done.

In addition, the wind power generation system of the dual power transmission system according to the present invention has the effect of minimizing the friction and noise during rotation by configuring the first rotary shaft with a rotating portion and a supporting portion having a different polarity.

In addition, the wind power generation system of the dual power transmission system according to the present invention, if the wind is weak or no, the auxiliary motor rotates in the same direction as the first rotary shaft to conserve the insufficient wind so that the second rotary shaft can rotate constantly. Because of this, it is effective to make continuous and stable development.

1 is a block diagram showing the configuration of a wind power generation system of a dual power transmission system according to the present invention.
Figure 2 is a perspective view showing one embodiment of a wind power generation system of the dual power transmission system according to the present invention according to the present invention.
Figure 3a is a perspective view showing a pulley according to the present invention, Figure 3b is an exploded perspective view showing a pulley according to the present invention, Figure 3c is a plan view showing a pulley and a V belt according to the present invention.
4A to 4C are views illustrating a pulley and a V belt installed on the first and second rotation shafts and the auxiliary motor according to the present invention.
Figure 5a is a view showing a state in which the first belt is coupled to the first and second rotation shaft in accordance with the present invention, Figure 5b is a view showing a state in which the second belt is coupled to the first and second rotation shaft in accordance with the present invention. It is a figure.
Figure 6 is another block diagram showing the configuration of a wind power generation system of the dual power transmission system according to the present invention.
7 is a block diagram showing the configuration of a control device according to the present invention.
8 is a view showing a first rotating shaft according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the terms described below are defined in consideration of the functions of the present invention, and these may vary depending on the intention of the user, the operator, or the precedent. Therefore, the definition should be based on the contents throughout this specification.

1 is a block diagram showing the configuration of a wind power generation system of the dual power transmission method according to the present invention, Figure 2 is a perspective view showing an embodiment of the wind power generation system of the dual power transmission method according to the present invention. to be.

1 and 2, the wind power generation system of the dual power transmission system according to the present invention is largely the wind power unit 100, the power transmission unit 200, the auxiliary motor 300, the generator 400 It may include.

In detail, the wind power generation system of the dual power transmission system according to the present invention includes a first wind turbine 110 and a plurality of blades 111 formed on the first pivot 110 to provide wind power ( 100) a power including a second rotary shaft 210 connected to the first rotary shaft 110 and a centrifugal disc 211 formed on the second rotary shaft 210 to generate torque due to centrifugal force during rotation. Transfer unit 200, the movable shaft 410 is connected to the second rotary shaft 210 and rotated, at least two generators 400 and the second generating the electromotive force by the rotation of the movable shaft 410 and the second It may include an auxiliary motor 300 is connected to the rotary shaft 210 and rotates the second rotary shaft 210 when the first rotary shaft 110 does not rotate.

For example, the wind turbine 100 is installed on the ground, in a tunnel, and the like to generate wind power, and includes a first rotary shaft 110 and a plurality of blades 111 formed on the first rotary shaft 110. can do.

The first rotation shaft 110 rotates by the wind accommodated in the blade 111 to generate wind power.

The blade 111 serves to drive the first rotation shaft 110 by receiving the wind, there is no particular limitation on the shape, structure or number.

The power transmission unit 200 rotates by the power supplied by the wind power unit 100 or the auxiliary motor 300 and serves to transmit the rotational force to the generator 400.

The power transmission unit 200 may include a second rotary shaft 210 and a centrifugal disk 211, and may be illustrated as two installed as shown, but is not limited thereto, one or more Can be installed.

The second rotary shaft 210 is a first belt 510 to be connected to the first rotary shaft 110, a second belt 520 to be connected to the auxiliary motor, and a second connecting to the movable shaft 410 Three belts 530 may be installed.

The centrifugal disk 211 is formed to be fixed in the transverse direction around the second rotary shaft 210, and serves to increase the torque by generating a centrifugal force during rotation of the second rotary shaft 210. By the torque generated by the centrifugal disk 211, a plurality of generators 400: 400a, 400b, 400c, ... can be driven.

The generator 400 serves to convert the rotational force of the second rotary shaft 210 into electrical energy, the movable shaft 410 and the permanent magnet (not shown) provided on the movable shaft 410, and the It can be driven on the principle that the electromotive force is generated by a wound coil (not shown) located outside the permanent magnet, and vice versa. However, since such a generator corresponds to a known configuration, a detailed description thereof will be omitted.

In addition, the generator 400 may apply a magnetic force open-type power generation method, and a power generation method to which JS bipolar parallel theory is applied for energy efficiency. And the electrical energy generated by the generator is stored in the rechargeable battery (not shown). The movable shaft formed in each generator is connected to the second rotating shaft 210 and the third belt 530 to rotate.

When the auxiliary motor 300 does not provide power from the wind turbine unit 100, the auxiliary motor 300 serves to generate power when the first rotary shaft of the wind turbine unit 100 does not rotate because the wind does not blow. As, the second rotary shaft 210 and the second belt 520 is connected.

That is, when the auxiliary motor 300 does not blow wind or is weak enough to not generate sufficient power, the auxiliary motor rotates the second rotating shaft 210 to allow the generator 400 to continuously generate power.

Figure 3a is a perspective view showing a pulley according to the present invention, Figure 3b is an exploded perspective view showing a pulley according to the present invention, Figure 3c is a plan view showing a pulley and a V belt according to the present invention. 4A to 4C are views illustrating a pulley and a V belt installed on the first and second rotation shafts and the auxiliary motor according to the present invention.

3A to 4C, the first and second pulleys 600 according to the present invention serve to control the first rotation shaft 110 or the auxiliary motor 300 to rotate in only one direction. .

Each of the first and second pulleys 600 may largely include an inner body 610, an outer body 630, and a cover 650.

The inner body 610 is formed with an elastic engaging piece 611 to prevent rotation in the reverse direction.

The outer body 630 is coupled to the outside of the inner body 610, the inner circumferential surface is formed with a plurality of engaging grooves 631 to the elastic engaging piece 611, the outer circumferential surface of the first belt 510 Coupling teeth 633 engaged with the grooves 501 are formed.

The first belt 510 and the second belt 520 of the V-belt form a plurality of grooves 501 are formed on the inner circumference, respectively, and are coupled to the coupling teeth 633 of the outer body 630 to transmit power. Play a role.

The cover 650 serves to couple the inner body 610 and the outer body 630.

When the first pulley 600a is formed on the first rotation shaft 110, the elastic locking piece 611 is caught by the locking groove 631. Therefore, when the first rotary shaft 110 rotates in the clockwise direction, the rotational force is transmitted to the first belt 510 to rotate the second rotary shaft 210. On the contrary, if the first rotating shaft 110 does not rotate and the second rotating shaft 210 rotates counterclockwise, the first belt 510 rotates but the elastic catching piece 611 of the first pulley 600a is rotated. Only the outer body 630 is rotated because it is not caught by the locking groove 631.

That is, the first pulley 600a rotates integrally with the inner body 610 and the outer body 630 in the clockwise direction, but only rotates the outer body 630 in the counterclockwise direction.

Referring to FIG. 4A, a first pulley 600a coupled to the first belt 510 is formed at the first rotation shaft 110, and coupled to the second belt 520 at the auxiliary motor 300. The second pulley 600b may be formed.

Referring to FIG. 4B, the second rotation shaft 210 is configured such that a first pulley 600a coupled to the first belt 510 and a second pulley 600b coupled to the auxiliary motor 300 are formed. can do.

Referring to FIG. 4C, a pair of first pulleys 600a are formed on the first and second rotation shafts 110 and 210, respectively, and a pair of the auxiliary motor 300 and the second rotation shafts 210, respectively. The second pulley 600b may be formed.

In any case of FIGS. 4A to 4C, the first pulley and the second pulley rotate in different directions. That is, the first pulley rotates the first belt clockwise, and the second pulley rotates the second belt counterclockwise. Therefore, the auxiliary motor does not rotate when the first rotary shaft rotates, and the first rotary shaft does not rotate when the auxiliary motor rotates.

Figure 5a is a view showing a state in which the first belt is coupled to the first and second rotation shaft in accordance with the present invention, Figure 5b is a view showing a state in which the second belt is coupled to the first and second rotation shaft in accordance with the present invention. It is a figure.

Referring to FIG. 5A, the first rotation shaft 110 and the second rotation shaft 210 according to the present invention may be configured to rotate at different rotation speeds.

For example, the first pulley 600a installed in the second rotation shaft 210 is formed larger than the rotation radius of the second rotation shaft 210, so that the rotation speed of the second rotation shaft 210 is the first rotation shaft. It decelerates than the rotation speed of 110.

Similarly, referring to FIG. 5B, the second pulley 600b installed in the second rotation shaft 210 is formed larger than the rotation radius of the auxiliary motor 300 so that the rotation speed of the second rotation shaft 210 is the auxiliary speed. It is decelerated than the rotation speed of the motor 300.

The reason for decelerating the rotational speed of the second rotary shaft as described above is to match the optimum rotational speed required for power generation in the generator. Although not shown, in some cases, the second rotation shaft may be configured to accelerate faster than the rotation speed of the first rotation shaft or the auxiliary motor.

Figure 6 is another block diagram showing the configuration of the wind power generation system of the dual power transmission system according to the present invention, Figure 7 is a block diagram showing the configuration of the control device according to the present invention, Figure 8 is a first according to the present invention It is a figure which shows a rotating shaft.

6 to 8, the wind power generation system of the dual power transmission system according to the present invention is the wind power unit 100, the power transmission unit 200, the auxiliary motor 300, the generator 400 In addition to the control device 700 may further include.

The control device 700 stops the driving of the auxiliary motor 300 when the first rotation shaft 110 rotates, and stops the driving of the first rotation shaft 110 when the auxiliary motor 300 rotates. can do.

The control apparatus 700 may largely include a sensor 730, a transmitter 750, and a controller 710.

In detail, the control apparatus 700 includes a sensor 730 for detecting whether the first rotation shaft 110 or the auxiliary motor is rotated, a transmitter 750 for transmitting a signal detected by the sensor 730, and the The controller 710 may receive a signal from the transmitter 750 and control the driving of the first rotating shaft 110 or the auxiliary motor 300.

For example, when the first rotation shaft 110 does not rotate, when the sensor 730 detects this and sends a signal to the controller 710, the auxiliary motor 300 rotates in the controller 710. To control. When the wind blows again while rotating the second rotation shaft 210 by the auxiliary motor 300, the sensor 730 detects this and sends a signal to the controller 710 to rotate the auxiliary motor 300. Control to stop.

On the other hand, the first rotary shaft 110 or the second rotary shaft 210 is the support portion 120, the upper portion of the support portion 120, the rotating portion 130 is formed by the blade rotates, and the support portion It may be made of a rotary shaft cover 150 for receiving the 120 and the rotating unit 130.

The rotating part 130 of the first rotating shaft 110 may be divided into a first rotating part 131 and a second rotating part 133, and the controller is disposed between the first rotating part 131 and the second rotating part 133. Clutch 770 corresponding to the configuration of may be formed. Since the clutch 770 corresponds to a well-known matter such as being installed and used between the engine and the transmission gear of the vehicle, a detailed description thereof will be omitted.

The clutch 770 is used to connect or block the first rotation part 131 and the second rotation part 133. The clutch 770 may be used to stop the second rotating part 133 without stopping the first rotating part 131.

For example, when the second rotation shaft 210 is rotated counterclockwise by the auxiliary motor 300, the first rotation shaft 110 is rotated to rotate the first belt 510 clockwise. When the rotational force in the opposite direction is applied to the second rotating shaft 210, only the first rotating portion 131 in the clutch 770, and the second rotating portion 133 does not rotate, thereby preventing this phenomenon You can do it.

That is, the control unit blocks the connection between the first rotating unit and the second rotating unit by operating the clutch while the second rotating shaft is rotated by the auxiliary motor. And when there is wind that can generate power by the first rotating shaft to sense the number of revolutions of the first rotation by the sensor to stop the rotation of the auxiliary motor, the clutch to make the first rotation and the second rotation of the connection is made It is possible to prevent the load on the second rotary shaft.

In addition, the rotating part, specifically, the second rotating part may be configured to have a polarity opposite to the support part so as to minimize friction during rotation due to magnetic levitation.

On the other hand, Figure 9 is a view showing the pulley and the V-belt installed in the first and second rotation shaft and the auxiliary motor according to the present invention, Figure 10a is a first belt according to the present invention in the first and second rotation shaft 10B is a view showing a combined state, and FIG. 10B is a view illustrating a state in which a second belt according to the present invention is coupled to a first rotating shaft and a second rotating shaft.

9 to 10B, unlike the foregoing, the first pulley 600a and the second pulley 600b may be configured to rotate in the same direction, and the first rotation shaft 110 and the auxiliary motor may be rotated. 300 may drive the generator by either rotating at the same time or selectively.

In this case, the controller (see FIG. 7) may control the rotational speed or the rotational speed of the auxiliary motor by sensing the rotation speed of the first rotation shaft.

That is, the auxiliary motor 300 rotates the second rotary shaft 210 while turning in the same direction as the first rotary shaft when the rotational force of the first rotary shaft 110 is weak or absent. Therefore, when the rotation of the first rotary shaft is weak, the auxiliary motor has a merit that the second rotary shaft can be constantly rotated by preserving the insufficient rotational force of the first rotary shaft has the advantage of continuous and stable power generation.

As such, the wind power generation system of the dual power transmission system according to the present invention may be driven in various ways.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: wind power unit 110: first rotating shaft
111: blade 120: support
130: rotating part 131: first rotating part
133: second rotating part 150: rotating shaft cover
200: power transmission unit 210: second rotating shaft
211: centrifugal disk 300: auxiliary motor
310: auxiliary motor shaft 400: generator
410: movable shaft 500: belt
501: groove 510: first belt
520: second belt 530: third belt
600: pulley 610: inner body
611: elastic locking piece 630: outer body
631: engaging groove 633: coupling teeth
650: cover 700: control device
710: control unit 730: sensor
750: transmitter 770: clutch

Claims (7)

A first rotating shaft; Wind power unit for providing wind power including a plurality of blades formed on the first rotary shaft;
A power transmission unit including a second rotation shaft connected to the first rotation shaft, and a centrifugal disk formed on the second rotation shaft to generate torque due to centrifugal force during rotation;
A movable shaft connected to the second rotary shaft to rotate and at least two generators generating electromotive force by the rotation of the movable shaft; And
And an auxiliary motor connected to the second rotating shaft and rotating the second rotating shaft when the first rotating shaft does not rotate.
The second rotation shaft is provided with a first belt for connecting the first rotation shaft, a second belt for connecting the auxiliary motor, a third belt for connecting the movable shaft,
The dual power transmission wind power generation system, characterized in that the power generation by the dual drive method by the wind power unit and the auxiliary motor. The method of claim 1,
Each of the first belt and the second belt is a V belt having a plurality of grooves formed on an inner surface thereof.
A first pulley coupled to the first belt is formed on the first rotation shaft, and a second pulley coupled to the second belt is formed on the auxiliary motor, or a second pulley coupled to the first belt on the second rotation shaft. The dual power transmission wind power generation system, characterized in that the first pulley and the second pulley is coupled to the auxiliary motor is formed. The method of claim 2,
The first pulley and the second pulley is configured to rotate in the opposite direction, the first rotating shaft and the auxiliary motor is configured so that the other one does not rotate when one rotates,
Each of the first and second pulleys,
An inner body in which an elastic catching piece is formed to prevent rotation in the reverse direction;
An outer body coupled to an outer side of the inner body, an inner circumferential surface having a plurality of locking grooves on which the elastic locking piece is caught, and an outer circumferential surface having a coupling tooth engaged with the groove of the V belt;
Dual power transmission method of the wind power generation system comprising a; cover for coupling the inner body and the outer body. The method of claim 3,
Further comprising a control device for stopping the driving of the auxiliary motor when the first rotary shaft is rotated, and stopping the driving of the first rotary shaft when the auxiliary motor is rotated,
The control device includes a sensor for detecting whether the first rotary shaft or the auxiliary motor is rotated;
A transmitter for transmitting a signal sensed by the sensor;
A clutch for receiving a signal from the transmitter and controlling the driving of the first rotary shaft or the auxiliary motor, and the rotational force of the first rotary shaft is not transmitted to the second rotary shaft when the second rotary shaft is rotated by the rotation of the auxiliary motor. A control unit including a;
Dual power transmission system wind power generation system comprising a. The method of claim 2,
The first pulley and the second pulley is configured to rotate in the same direction with each other,
The first rotary shaft and the auxiliary motor at the same time or selectively any one rotates to drive the generator,
Each of the first and second pulleys,
An inner body in which an elastic catching piece is formed to prevent rotation in the reverse direction;
An outer body coupled to an outer side of the inner body, an inner circumferential surface having a plurality of locking grooves on which the elastic locking piece is caught, and an outer circumferential surface having a coupling tooth engaged with the groove of the V belt;
Dual power transmission method of the wind power generation system comprising a; cover for coupling the inner body and the outer body. The method of claim 1,
The second rotation shaft is formed of a smaller than the rotation radius of the first rotary shaft or auxiliary motor is a dual power transmission system, characterized in that the deceleration is made. The method of claim 1,
The first rotating shaft or the second rotating shaft is composed of a supporting portion, a rotating portion located on the upper portion of the supporting portion and the blade is formed and rotated, and a rotating shaft cover for receiving the supporting portion and the rotating portion,
The rotating part has a polarity opposite to the supporting portion magnetic levitation to the wind power generation system of the dual power transmission system, characterized in that to minimize the friction during rotation.

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